mirror of https://github.com/qpdf/qpdf.git
85 lines
1.6 KiB
C++
85 lines
1.6 KiB
C++
|
|
#include <qpdf/QPDF_Dictionary.hh>
|
|
|
|
#include <qpdf/QPDF_Null.hh>
|
|
#include <qpdf/QPDF_Name.hh>
|
|
|
|
QPDF_Dictionary::QPDF_Dictionary(
|
|
std::map<std::string, QPDFObjectHandle> const& items) :
|
|
items(items)
|
|
{
|
|
}
|
|
|
|
QPDF_Dictionary::~QPDF_Dictionary()
|
|
{
|
|
}
|
|
|
|
std::string
|
|
QPDF_Dictionary::unparse()
|
|
{
|
|
std::string result = "<< ";
|
|
for (std::map<std::string, QPDFObjectHandle>::iterator iter =
|
|
this->items.begin();
|
|
iter != this->items.end(); ++iter)
|
|
{
|
|
result += QPDF_Name::normalizeName((*iter).first) +
|
|
" " + (*iter).second.unparse() + " ";
|
|
}
|
|
result += ">>";
|
|
return result;
|
|
}
|
|
|
|
bool
|
|
QPDF_Dictionary::hasKey(std::string const& key)
|
|
{
|
|
return ((this->items.count(key) > 0) &&
|
|
(! this->items[key].isNull()));
|
|
}
|
|
|
|
QPDFObjectHandle
|
|
QPDF_Dictionary::getKey(std::string const& key)
|
|
{
|
|
// PDF spec says fetching a non-existent key from a dictionary
|
|
// returns the null object.
|
|
if (this->items.count(key))
|
|
{
|
|
// May be a null object
|
|
return (*(this->items.find(key))).second;
|
|
}
|
|
else
|
|
{
|
|
return QPDFObjectHandle::newNull();
|
|
}
|
|
}
|
|
|
|
std::set<std::string>
|
|
QPDF_Dictionary::getKeys()
|
|
{
|
|
std::set<std::string> result;
|
|
for (std::map<std::string, QPDFObjectHandle>::const_iterator iter =
|
|
this->items.begin();
|
|
iter != this->items.end(); ++iter)
|
|
{
|
|
if (hasKey((*iter).first))
|
|
{
|
|
result.insert((*iter).first);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void
|
|
QPDF_Dictionary::replaceKey(std::string const& key,
|
|
QPDFObjectHandle const& value)
|
|
{
|
|
// add or replace value
|
|
this->items[key] = value;
|
|
}
|
|
|
|
void
|
|
QPDF_Dictionary::removeKey(std::string const& key)
|
|
{
|
|
// no-op if key does not exist
|
|
this->items.erase(key);
|
|
}
|